The difference between ERW pipe and HFW pipe

The difference between ERW pipe and HFW pipe
ERW call is one of the resistance welding steel pipe, ERW are respectively corresponding to the first letter of the English word. Resistance welding steel pipe can be divided into ac and dc welding welding two forms.
Ac welding according to the different frequency is divided into low frequency, intermediate frequency brazing, intermediate frequency and high frequency welding welding. High frequency welding is mainly used for thin wall pipe or ordinary wall thickness pipe production, high frequency welding is divided into contact welding and induction welding.
Dc welding is commonly used in small diameter steel pipe.
So, in general, the high frequency welded pipe contained in ERW welded pipe, is a kind of high frequency welding process production ERW welded pipe.


Price Adjustment for Q345 Welded Carbon Steel Pipe

Price Adjustment for Q345 Welded Carbon Steel Pipe

The focus of the current market or gathered in the social stock of Q345B longitudinal welded pipe, the five statistics on Friday the total inventory of the five Q345B longitudinal welded pipe stock total 8.44 million tons, 0.4% WoW, down 9.2%; five Q345B straight seam Weld pipe plant inventory total of 4.899 million tons, an increase of 4.9% WoW, down 16.3% year on year. If you look at the current social stock of Q345B longitudinal welded pipe absolute quantity, there is no doubt that the current market inventory pressure is small, but the steel plant inventory began to rise is worth noting. Because the five major varieties of social stock as a result of the decline in the sample caliber representative, in fact, outside the caliber of the amount of resources or trends in the trend of the sample is not the same, so the process of resource dispersion trend is often the core regional stock transfer to non-core areas .
In addition, as the "car limit set" strictly enforced, in fact, the increase in the amount of in-transit resources have been ignored, taking into account the limited capacity of vehicles in southern China, for example, motor transport cycle basically from the past 1-2 days to 2-5 days , That is, the amount of vehicles in transit than in the past to look through; the same token, in the original fuel materials also exist such a situation. If the vehicle capacity does not improve, this resource does not constitute a pressure on the market, but this year, truck sales rose significantly, from January to October 2016 more than 40 tons of semi-tractor sales rose 98.5%; 25-40 tons between the semi-traction Car sales rose 16.6%; 25 tons and below semi-tractor sales rose 119% year on year.
But in October, more than 40 tons, 25-45 tons and 25 tons the following semi-tractor sales were up 45.9%, 68.4% and 117.8%. In general, the truck sales to the road takes 50 days or so, once the capacity to enhance, ask who is willing to increase the transport cycle to extend and bear the burden of resources and risk of funds in transit, then the latter is not there will be a lot of transit resources into social stock To be tested!
Raw materials, the domestic coal mine production safety requirements more stringent, the major domestic coal mines to ensure safe production, production than the previous period have different degrees of decline, making most of the coking plant inventory of refined coal declined support coking coal prices continue to be strong . Affected by this, high-grade iron ore spot prices are also supported, the current futures and spot basis also reflects this trend. So hope that the original fuel material spot fell may not be desirable, but rather need to pay attention to the price difference between the repair. Of course, this premise is the production of steel production enterprises will not substantially


Spiral steel pipe, straight seam steel pipe, steel springboard be better progressly

Spiral steel pipe, straight seam steel pipe, steel springboard be better progressly
The situation of the steel market this year is different from previous, traditional demand off-season arrival did not cause too big effect, because of the influence of the low costs and inventory, steel price short-term downside is limited, can predict early November steel prices fly again for a while! As a result, the spiral steel pipe, straight seam steel pipe, steel springboard products prices are going.
Steel market supply and demand in November there was still hope keep good posture, basically have the following reasons:
1, the capacity factor
Recent provinces to work in production on the agenda, on October 29, held in tangshan dissolve excess steel production capacity in October on demolishing, finished the province up to dissolve the steel production tasks this year. Operation, were dismantled the plump, qianan 8 companies nine four of converter or blast furnace burden, dissolve the ironmaking production capacity 4.83 million tons of steel production capacity of 2.9 million tons. Released parts factory shut down after the blast furnace, and the overall out of billet quantity reduced, already in short supply of billet is more short, cause certain influence to the stock.
2, inventory factors
In early October steel inventory and social inventory has fallen sharply, stock fell 113.3 and 902000 tons respectively, to the end of the month continues to decline, infinite close to historic lows. Look from the supply, according to the latest statistics, 164 tangshan steel blast furnace capacity utilization is 76.83%, weeks than fell by 4.88%, with the capacity to further fall to the ground, the development of the environmental supervision, the steel mills cut production maintenance, strained November will exacerbate, balance between supply and demand will be phased order.
3, cost factors,
Considering the steel mills coal, coke available inventory days continues to decline, some even only enough to use two or three days, the supply is still tight, there is a slight upward space; in November Catch up market also appears under its impetus, iron ore imports ore in October index gained about $10 / ton, this will encourage steel costs continue to rise. According to ChengShi of iron and steel group, data statistics, as of November 1, the average profit level of the thread is about 70 yuan/ton, profile is still losing money, the average losses of 30 yuan/tons, in social inventory and steel inventories are not high, steel sales, pressure is not big, the high cost can support steel prices continue to strong.
4, macro stabilizing factor
Obvious signs of macroeconomic stabilisation, demand for steel has had a huge impact. September PPI rebounded 0.5%, rose 0.1%, ended 54 months continue to fall. Due to higher commodity prices, laid the foundation for the expansion of enterprise management and earnings upgrades. Three is the enterprise profit improvement. Industrial enterprises above designated size 9 month before total profit year-on-year growth of 8.4%, 2.2% faster than the first half, 7-15.2% growth in August, September state profit up 27% from a year earlier. Corporate earnings improve, provides the power source for promoting investment. Both investment stabilized, and improve corporate profits, were supportive of steel consumption.
To sum up, the steel market in November, the cost and the influence of low inventory, downward space is limited, but, after all, the off-season fell to demand will continue to fall, the extent of upward will also be limited. Taken together, the probability of strong operation is higher, spiral steel pipe, straight seam steel pipe, steel springboard product prices will still be better progressly.


Galvanized Steel Pipe Using Advantages

Galvanized Steel Pipe Using Advantages

When we talk about the galvanized steel pipes, we usually refer to the hot dipped galvanized steels pipes which are more durable and strengthened than any other types. The cleaning process which the hot dipped galvanized steel pipe uses is far more special in the combination use of the solutions, including the ammonium chloride, zinc chloride or the mixed solutions of both. And it will be sent into the hot dipped groove afterwards. The galvanized steel tube will be with more even layer of the galvanization and the capacity of cohesion, anti-corrosion and anti-dust. All of these as mentioned above will contribute to this kind of steel pipe to be have longer longevity than any other steel pipe kinds.

The regular specification of the galvanized steel tubing which are available from SHINESTAR include 48.3×2.5、48.3×2.75、48.3×3.0、48.3×3.25、48.3×3.5 and other customized types per required.
To maintain these galvanized steel tubes, we should keep in mind about these following steps:
1. Regular clean away the piling-up materials around the steel and control its loading under its limitation.
2. Regular observe if there is any deviation among the steel tube's whole structure of parts of it. If yes, make alteration in time.